Doug Young Suh, Seongnam-Si KR

Doug Young Suh, Seongnam-Si KR

Patent application number

Description

Published

20080273599

METHOD AND APPARATUS FOR ENCODING AND DECODING MULTI-VIEW VIDEO DATA - Provided are a method and apparatus for encoding and decoding multi-view video data. The method of encoding multi-view video data includes determining whether a current picture is an anchor picture; and encoding blocks of the current picture by selectively applying a skip block mode to the blocks if the current picture is the anchor picture. According to the present invention, image quality and coding efficiency may be improved.

11-06-2008

20090003455

METHOD AND APPARATUS FOR ILLUMINATION COMPENSATION IN MULTI-VIEW VIDEO CODING - Disclosed is a method and apparatus for illumination compensation in a multi view video coding. The method includes deriving a predicted illumination compensation value of the current block by using information on neighbor blocks of the current block when a current block performing illumination compensation is in a skip mode; setting the current block not to perform the illumination compensation when the derived predicted illumination compensation value is 0 and setting the current block to perform the illumination compensation when the derived predicted illumination compensation value is not 0.

01-01-2009

20090010340

METHOD AND APPARATUS FOR ILLUMINATION COMPENSATION IN MULTI-VIEW VIDEO CODING - Disclosed is a method of determining illumination compensation in a multi view video coding. The method includes determining when a current block performing illumination compensation is in a B skip mode and deriving a predicted illumination compensation value of the current block by using information regarding neighbor blocks of the current block and when the derived predicted illumination compensation value is not determining, setting the current block not to perform the illumination compensation; and when the derived predicted illumination compensation value is determining, setting the current block to perform the illumination compensation.

01-08-2009

20090122134

METHOD OF RECORDING THREE-DIMENSIONAL IMAGE DATA - A method of storing 3D image data in a recording medium includes: loading, in a predetermined file type field, image type information indicating either one of a single stereoscopic image or a compound image including a monoscopic image and a stereoscopic image; loading, in a predetermined image configuration information container field, scene descriptor information indicating temporal and spatial relations between a plurality of media objects included in the three-dimensional image, object configuration information indicating attributes of each media object of said plurality of media objects and a configuration relation between encoded streams of the plurality of media objects, configuration information of the encoded streams; loading in an image data container field media data of an image to be stored; and loading, in a meta container field, metadata including information for playing the 3D image data.

05-14-2009

20100182403

FILE FORMAT FOR ENCODED STEREOSCOPIC IMAGE/VIDEO DATA - Provided is a file format for encoded image data which can be reproduced into a lifelike stereoscopic image by a display apparatus for displaying a stereoscopic image. The file format for an encoded stereoscopic image includes an image data unit containing image information of the encoded stereoscopic image and a header unit containing meta data used to decode and reproduce the image information of the encoded stereoscopic image contained in the image data unit. The header unit can include at least one header unit of a camera header sub-unit containing information on left and right cameras used to acquire the stereoscopic image, a codec header sub-unit containing information on the encoding of the stereoscopic image, and a display header sub-unit containing information on a barrier type display apparatus for receiving and reproducing the encoded stereoscopic image data.

07-22-2010

20100242071

METHOD AND APPARATUS FOR TRANSFERRING USER INFORMATION BETWEEN TERMINALS IN BROADCAST STREAMING SERVICE - A method and apparatus for transferring user information between different terminals are disclosed. The method includes saving by a first terminal, when a change is made to user information during playback of content, the changed user information in a scene history, performing a terminal change from the first terminal to a second terminal, and resuming, by the second terminal, playback of the content from a continued scene after the last scene played back by the first terminal. Consequently, in a terminal change, the user may use the second terminal to play back the same content from the continued scene using the same content usage environment as the first terminal.

09-23-2010

20100259596

APPARATUS AND METHOD FOR TRANSMITTING STEREOSCOPIC IMAGE DATA - A method and apparatus transmitting stereoscopic image data according to a variable channel environment are provided. The method includes granting a priority to each of a plurality of frames constituting one image group; determining a number of transmittable frames based on a variable channel environment; and selecting transmittable frames from among the plurality of frames based on the determined number of transmittable frames and the granted priories

10-14-2010

20100290483

APPARATUS AND METHOD FOR TRANSMITTING STEREOSCOPIC IMAGE DATA - A method for transmitting stereoscopic images using a variety of transport protocols is provided. To this end, a stereoscopic image packet is defined that comprises a stereoscopic packet header and a stereoscopic video packet header. The defined stereoscopic packet header and stereoscopic video packet header are used to transmit metadata needed for transmission of stereoscopic images. By doing so, it is possible to ensure compatibility with a variety of transport protocols.

11-18-2010

20110002392

METHOD AND APPARATUS FOR MULTI-VIEW VIDEO ENCODING AND METHOD AND APPARATUS FOR MULTIVIEW VIDEO DECODING - Methods and apparatuses for efficiently coding and decoding multi-view video are provided. A method of decoding multi-view video includes: interpreting from a received bitstream a block type indicating a method of determining a motion vector of a current block present in a current picture of the multi-view video; interpreting a first picture type indicating whether the current picture is a reference picture type for inter prediction; interpreting additional information of the current picture based on at least one of the interpreted first picture type and the interpreted block type; and reconstructing the current block and the current picture by using the additional information.

01-06-2011

20110037742

COOPERATIVE MULTI-DISPLAY - Cooperative multi-display systems and techniques are provided. In one embodiment, a cooperative multi-display system includes multiple flexible displays, a controller that processes an original image into sub-images, each of the sub-images being at a location in the original image that corresponds to a location of each of the multiple flexible displays, and a driver that drives the multiple flexible displays and forwards the processed sub-images from the controller to the multiple flexible displays, respectively.

METHOD AND APPARATUS FOR MULTI-VIEW VIDEO ENCODING USING CHROMINANCE COMPENSATION AND METHOD AND APPARATUS FOR MULTI-VIEW VIDEO DECODING USING CHROMINANCE COMPENSATION - Methods and apparatuses for efficiently coding and decoding multi-view video are provided. A method of decoding multi-view video includes: interpreting a first picture type indicating whether a current picture of the multi-view video is a reference video type for inter prediction; interpreting a block type indicating a method of determining a motion vector of a current block of the current picture; interpreting a chrominance compensation value of the current block based on at least one of the interpreted first picture type and the interpreted block type; and performing chrominance compensation on the current block by using the interpreted chrominance compensation value.

01-19-2012

20120023254

METHOD AND APPARATUS FOR PROVIDING MULTIMEDIA STREAMING SERVICE - In an apparatus for providing a multimedia streaming service, a server transmits a Media Presentation Description (MPD) including information about media data to a client, receives a partial request message requesting a part of media data having a range according to a defined range in the MPD, and transmits to the client a segment having the range in response to the partial request message. The segment includes at least one fragment, segment index information indicating the position of the at least one fragment in the segment, and fragment index information indicating the position of each of a plurality of samples included in the at least one fragment.

01-26-2012

20120047280

METHOD AND APPARATUS FOR REDUCING DETERIORATION OF A QUALITY OF EXPERIENCE OF A MULTIMEDIA SERVICE IN A MULTIMEDIA SYSTEM - A method and an apparatus for reducing a deterioration of a Quality of Experience (QoE) in a multimedia service. The method includes reproducing a first multimedia stream by the multimedia device, receiving a command for reproducing a second multimedia stream during the reproducing of the first multimedia stream, and reproducing the second multimedia stream with reference to information regarding a unit image that is independently decoded from the second multimedia stream. The information regarding the unit image includes information regarding a number of unit images per unit time included in the second multimedia stream.

02-23-2012

20120250690

METHOD AND APPARATUS FOR TRANSMITTING A MULTIMEDIA DATA PACKET USING CROSS LAYER OPTIMIZATION - A method and apparatus for transmitting a multimedia data packet are provided. The method includes receiving Bottom-up Network Abstraction Layer (B-NAL) information from a network entity, generating Top-down Network Abstraction Layer (T-NAL) information on the multimedia data to be transmitted, generating a multimedia data packet containing said T-NAL information, and transmitting the multimedia data packet generated in the previous process, to the network entity, in consideration of said B-NAL information.

10-04-2012

20120320911

METHOD AND APPARATUS FOR TRANSMITTING DATA PACKET OF MULTIMEDIA SERVICE USING MEDIA CHARACTERISTICS - A method of transmitting a data packet of a multimedia service is provided. The method includes generating a media characteristic corresponding to a single media content component or aggregated media characteristics corresponding to a plurality of multimedia content components, obtaining information used for generating the data packet from the generated media characteristics or aggregated media characteristics, and generating the data packet based on the obtained information used for generating the data packet and transmitting the generated data packet.

12-20-2012

20120324490

APPARATUS AND METHOD FOR PROVIDING ADAPTIVE MULTIMEDIA SERVICE - An apparatus and a method for providing an adaptive multimedia service in a mobile communication system are provided. The method of providing a multimedia service includes collecting user-preference-aware information, device-capability-aware information, and network-aware information, generating a packet according to a correlation among the user-preference-aware information, the device-capability-aware information, and the network-aware information, and providing a multimedia service according to the generated packet.

12-20-2012

20130044183

DISTRIBUTED VIDEO CODING/DECODING METHOD, DISTRIBUTED VIDEO CODING/DECODING APPARATUS, AND TRANSCODING APPARATUS - Disclosed are a distributed video encoding/decoding method and a distributed video encoding/decoding apparatus, which can improve loss resilience and the quality of service. The distributed video encoding method first involves checking the state of a channel, determining a channel coding rate and the size of video data to be transmitted based on the checked state of a channel, determining the number of motion prediction performance steps based on the determined size of video data to be transmitted, encoding the video data to be transmitted by performing motion predictions according to the determined number of motion prediction performance steps, and channel-coding the encoded video data according to the determined channel coding rate. Accordingly, it is possible to improve loss resilience, even without additionally occupying network resources, thereby being capable of reducing the probability of decoding failure.

METHOD AND APPARATUS FOR TRANSMITTING STEREOSCOPIC VIDEO INFORMATION - In accordance with an illustrative configuration, a device and a method are configured to receive video stream including a stream receiving unit, a demultiplexing unit, and a decoding unit. The stream receiving unit is configured to receive multiplexed stream of video stream and signaling information describing the video stream. The demultiplexing unit is configured to demultiplex the received stream to video stream and signaling information. The decoding unit is configured to decode the demultiplexed video stream by using the signaling information. The signaling information includes stream type information on the video stream providing stereoscopic service and service type information, which indicates whether the service type according to the video stream is 2D monoscopic service or 3D stereoscopic service.

07-18-2013

20130286885

METHOD AND APPARATUS FOR TRANSMITTING A MULTIMEDIA DATA PACKET USING CROSS-LAYER OPTIMIZATION - An apparatus and method for transmitting a multimedia data packet are provided. The method includes receiving Bottom-up Network Abstraction Layer (B-NAL) information from a network entity, determining a media data quality based on the received B-NAL information and generating media data having the determined media data quality, and generating a packet including the generated media data and transmitting the packet to the network entity.

10-31-2013

20130301656

METHOD AND APPARATUS FOR TRANSMITTING A MULTIMEDIA DATA PACKET - A method and an apparatus for transmitting a multimedia data packet are provided. The method includes generating Media Abstraction Layer (MAL) information for abstracting information on the multimedia data to be transmitted, generating a multimedia data packet including said MAL information, and transmitting the generated multimedia data packet to a network entity.

11-14-2013

20140023071

APPARATUS AND METHOD FOR DELIVERING TRANSPORT CHARACTERISTICS OF MULTIMEDIA DATA - There are provided a method and apparatus for delivering transport characteristics of multimedia data. According to an aspect of the present invention, transport characteristics of media data that can be divided in a unit of a Media Processing Unit (MPU) are created in a unit of a predetermined number of MPUs, the created transport characteristics and a flag indicating presence or absence of the created transport characteristics are inserted into the media data, and the resultant media data is delivered. Accordingly, by using transport characteristics in units of media data unit groups, each media data unit corresponding to a short time length, it is possible to effectively control Quality of Service (QoS) in a dynamically changing transport environment, like a mobile network.

01-23-2014

20140059630

APPARATUSES FOR PROVIDING AND RECEIVING AUGMENTED BROADCASTING SERVICE IN HYBRID BROADCASTING ENVIRONMENT - An apparatus for providing an augmented broadcasting service and an apparatus for receiving the augmented broadcasting service in a hybrid broadcasting environment. The apparatus for providing the augmented broadcasting service includes: a real-time data provider configured to provide real-time data through a first transmission network; an augmented content provider configured to provide augmented content through a second transmission network, wherein the augmented content is to be synchronized with the real-time data; and a multiplexer configured to multiplex the real-time data, the augmented content metadata and timing information for synchronization between the real-time data and the augmented content metadata, and output resulting data.

02-27-2014

20140104367

METHOD AND APPARATUS FOR COMMUNICATING MEDIA INFORMATION IN MULTIMEDIA COMMUNICATION SYSTEM - A method for sending media information by a first terminal in a multimedia communication system is provided. The method includes generating scene configuration information that includes information regarding at least one medium of multiple media, and sending the scene configuration information to a second terminal, wherein the information regarding the at least one medium includes at least one of information indicating whether to allow reproduction of the at least one medium in the second terminal, resource information used to reproduce the at least one medium, position information used to reproduce the at least one medium on a screen, and reproduction time information for the at least one medium.

04-17-2014

20140105132

APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING MULTIMEDIA DATA DELIVERY CHARACTERISTICS INFORMATION IN MULTIMEDIA COMMUNICATION SYSTEM - A method for transmitting multimedia data delivery characteristics information by a multimedia data transmission apparatus in a multimedia communication system is provided. The method includes transmitting, to a multimedia data reception apparatus, an element indicating whether multimedia data delivery characteristics information denoting information related to a Quality of Service (QoS) for multimedia data is included, and the multimedia data delivery characteristics information if the element indicates that the multimedia data delivery characteristics information is included.

APPARATUS AND METHOD FOR TRANSCEIVING SCENE COMPOSITION INFORMATION IN MULTIMEDIA COMMUNICATION SYSTEM - A method for transmitting scene composition information from an apparatus therefor in a multimedia communication system is provided. The method includes generating scene composition information comprising media attributes information and temporal information, and transmitting the scene composition information, wherein the media attributes information and temporal information is separated into different formats.

01-15-2015

20150085940

METHOD AND APPARATUS FOR REPRODUCING VIDEO DATA - A method and an apparatus for reproducing video data are provided. The method includes the steps of extracting a coded video data stream and video data attribute information from the stored video file, extracting samples relevant to an expanded time layer from the extracted video data stream on the basis of the location information of the sample which allows for temporal layer access contailed in the video data attribute information, and restoring and reproducing the extracted samples.